51單片機4個獨立按鍵控制8個LED

ID:661003 · 發(fā)表于 2019-12-10 21:04

#include<reg52.h>
typedef int u16;
typedef char u8;
sbit led1=P0^0;
sbit led2=P0^1;
sbit led3=P0^2;
sbit led4=P0^3;
sbit led5=P0^4;
sbit led6=P0^5;
sbit led7=P0^6;
sbit led8=P0^7;
sbit k1=P2^7;
sbit k2=P2^6;
sbit k3=P2^5;
sbit k4=P2^4;
void delay(u16 i)
{
while(i--);
}
void keypros()
{
   if(k1==0)
  { delay(1000);
  if(k1==0)
  { led1=~led1;
led2=~led2;
      while(!k1);
  }
  }
if(k2==0)
{ delay(1000);
if(k2==0)
{ led3=~led3;
      led4=~led4;
      while(!k2);
  }
  }
  if(k3==0)
  { delay(1000);
  if(k3==0)
  { led5=~led5;
  led6=~led6;
  while(!k3);
  }
  }
  if(k4==0)
  { delay(1000);
  if(k4==0)
  { led7=~led7;
      led8=~led8;
while(!k4);
}
}
}void main()
{
while(1)
{
keypros();
}
}

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